diff --git a/dev-libs/c-blosc2/Manifest b/dev-libs/c-blosc2/Manifest
index 3c2afdb73fb22..1793ab4bb6da1 100644
--- a/dev-libs/c-blosc2/Manifest
+++ b/dev-libs/c-blosc2/Manifest
@@ -2,3 +2,4 @@ DIST c-blosc2-2.23.1.gh.tar.gz 3338640 BLAKE2B 528b4b87d2b8e29648de131b1d01a6240
 DIST c-blosc2-3.1.5.gh.tar.gz 1868284 BLAKE2B ade81a92481b6fd18d1f6f2f9b3e3dd3b3e8c32b60ad87d30ca7294badf9ba044de8bf14727f5e19a0468c65235fb301626e2c4a5bb1adb736bf5c68c37992b0 SHA512 d0a80358fd27efa9e0b6c007dc64140c459f9f2905445ed5b0bcd6b0ff34f2498ad997865e272a70ad5dc56f4dfb8575ef8f95eb223442c053639d2e82d36615
 DIST c-blosc2-3.2.3.gh.tar.gz 1917875 BLAKE2B 58b7f82ea0df527a65ad4e9e714aafd87f63e33d1995da374bceda11bd7bcdf21feb3e3b7651efceaba0ecf2d457d09610ac8694b30b687fd6d1b7f9d07710d2 SHA512 08054ae218d5be8e2e3a7b2fcd9254b808ea8e5f6b4ed14c8c45423689d66eaec28b8e42186b282c246a406d9903794344a175eef7012181abe69e32eef16ecc
 DIST c-blosc2-3.3.0.gh.tar.gz 1931411 BLAKE2B 21550842181997519a7b423a924ec436e771f6ac1bced0b465095a9606a216d090d1a02e01cad26f4e6f6a552f57ab70c435b7eb5f92fc04ccf62c859058b53d SHA512 66d4d52981b055431ab37615ebe2d6a1da7fe4f1f1a957c85dcf51cbfe9a03cdbc75b716da85678abbabb86bfad43605d906128ea4197051c3b38ba6c8d54b5c
+DIST c-blosc2-3.3.1.gh.tar.gz 1944808 BLAKE2B 1ccc131d42b5b46945b3fd76514e6ae69702309e3b5e8f8f8b84dd4cc155444db5e19150f560ead469235b5da1dbd226d7d538bde804810619f792fd5b85ff3d SHA512 ca787e37122f576486912b79047f5f25d74a67a98c23d7c4292513888c118507814d28df6dfeec338684da4b776b17ce8d5da3ee7ac879514bc6f4ca3ae78650
diff --git a/dev-libs/c-blosc2/c-blosc2-3.3.1.ebuild b/dev-libs/c-blosc2/c-blosc2-3.3.1.ebuild
new file mode 100644
index 0000000000000..64e2b9a915f9c
--- /dev/null
+++ b/dev-libs/c-blosc2/c-blosc2-3.3.1.ebuild
@@ -0,0 +1,63 @@
+# Copyright 1999-2026 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+inherit cmake
+
+DESCRIPTION="Blocking, shuffling and lossless compression library"
+HOMEPAGE="
+	https://blosc.org/c-blosc2/c-blosc2.html
+	https://github.com/Blosc/c-blosc2/
+"
+SRC_URI="
+	https://github.com/Blosc/c-blosc2/archive/v${PV}.tar.gz
+		-> ${P}.gh.tar.gz
+"
+
+LICENSE="BSD"
+SLOT="0/9"
+KEYWORDS="~amd64 ~arm ~arm64 ~hppa ~loong ~ppc ~ppc64 ~riscv ~s390 ~sparc ~x86"
+IUSE="test +zlib +zstd"
+REQUIRED_USE="test? ( zlib zstd )"
+RESTRICT="!test? ( test )"
+
+DEPEND="
+	>=app-arch/lz4-1.7.5:=
+	zlib? ( virtual/zlib:= )
+	zstd? ( app-arch/zstd:= )
+"
+RDEPEND="
+	${DEPEND}
+"
+
+src_configure() {
+	# remove bundled libs (just in case)
+	rm -rf internal-complibs || die
+
+	local mycmakeargs=(
+		-DBUILD_STATIC=OFF
+		-DBUILD_TESTS=$(usex test)
+		-DBUILD_BENCHMARKS=OFF
+		-DBUILD_EXAMPLES=OFF
+		-DBUILD_FUZZERS=OFF
+		-DDEACTIVATE_ZLIB=$(usex !zlib)
+		-DDEACTIVATE_ZSTD=$(usex !zstd)
+		# TODO: import dev-libs/zfp::guru
+		-DBLOSC_ENABLE_ZFP=OFF
+		-DBLOSC_DEPENDENCY_MODE=EXTERNAL
+
+		# force regular zlib, at least for  the time being
+		-DCMAKE_DISABLE_FIND_PACKAGE_ZLIB_NG=ON
+
+		# upstream overrides CMAKE_C_FLAGS, preventing ${CFLAGS} defaults
+		# from applying, https://github.com/Blosc/c-blosc2/issues/433
+		-DCMAKE_C_FLAGS="${CFLAGS}"
+	)
+	cmake_src_configure
+}
+
+src_test() {
+	# Tests fail in parallel, https://github.com/Blosc/c-blosc2/issues/432
+	cmake_src_test -j1
+}